Malicious PDF — malware analysis report

Static analysis result for SHA-256 26ff5afa3978b7ba…

MALICIOUS

PDF

72.3 KB Created: 2022-04-05 12:45:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-18
MD5: 41443db1a0d7d28b61612e2b750f77d6 SHA-1: cad267267aeb68ce0b47f3ec18d8610cc6b1fc2c SHA-256: 26ff5afa3978b7bafe6c3fbc2036c116d5ba35b4303e9f738fadc54fad592d5a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ramazupefedaze.weebly.com/uploads/1/3/5/3/135336263/182651.pdf In PDF document text
    • https://gheysenreal.com/uploads/files/kibumuwesotupa.pdfIn PDF document text
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206eb16bf26c---22288479256.pdfIn PDF document text
    • http://ckud.handysociality.com/upload/files/rokawareliragiboxisa.pdfIn PDF document text
    • https://berezudimideri.weebly.com/uploads/1/3/7/5/137512898/mozapojidube_terotijiwixaz_binezax_nijakaxevuvox.pdfIn PDF document text
    • https://iaido-iaijutsu.ru/userfiles_exc/84213658871.pdfIn PDF document text
    • https://esvigo.com/upload/files/neladopi.pdfIn PDF document text
    • https://zenozuniwilifa.weebly.com/uploads/1/3/4/1/134131556/gapavikasexij_fagasafobopo_pezud.pdfIn PDF document text
    • http://vanphongphambni.com/webroot/img/files/72981041435.pdfIn PDF document text
    • https://jujelotojoveri.weebly.com/uploads/1/3/4/7/134759731/4874811.pdfIn PDF document text
    • https://desense.eu/uploads/wysiwyg/files/bonivezupeteruti.pdfIn PDF document text
    • https://wiludexubusut.weebly.com/uploads/1/3/2/7/132740186/xixirigurumu.pdfIn PDF document text
    • https://regifedemez.weebly.com/uploads/1/3/1/4/131406591/wusewozon.pdfIn PDF document text
    • https://bevozuvegala.weebly.com/uploads/1/3/3/9/133999301/porixazaxorapiv.pdfIn PDF document text
    • http://spbmedax.ru/sites/default/files/uploads/tejowewofetexumeledapexe.pdfIn PDF document text
    • http://1yunnan.com/ckfinder/userfiles/files/vuwimiwezamagavibi.pdfIn PDF document text
    • https://kixuvatapowow.weebly.com/uploads/1/3/1/3/131383305/5391375.pdfIn PDF document text
    • https://balatonfurediallatorvos.hu/userfiles/file/xunijuxalizezo.pdfIn PDF document text
    • http://zhansq.cn/upload/file/66921549246.pdfIn PDF document text
    • https://xakowuval.weebly.com/uploads/1/3/5/3/135316831/samotumetanumapapez.pdfIn PDF document text
    • https://photojet.net/userfiles/file/xevomizegusixivotofanu.pdfIn PDF document text
    • https://vutofuwejazow.weebly.com/uploads/1/3/4/3/134321520/2935058.pdfIn PDF document text
    • https://mifuj.co.za/YmrXLWy8?keyword=best%20bike%20racing%20games%20for%20pc%20free%20download%20windows%2010PDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000b2e3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b2e3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b2e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2E3 11508 bytes
SHA-256: 8fd875ff3acb38c2d71698676aa66d8659565a45c708dda1e3bf6f7eabc8b8fe
font_01_sfnt_off0000cdde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDDE 16844 bytes
SHA-256: f42d4239b4655242a40fb0fd1856dcbbb61e0c8e30052c403de501fdbab991e5
font_02_sfnt_off0000f9ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9CA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1